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Obtaining corresponding pixel indices in perspective-corrected image
I managed to find a solution to this problem. First note that this applies to MATLAB versions R2014b and earlier. While I can't ...
mer än 9 år ago | 0
| accepted
Fibonacci sequence, slightly different.
It seems to be quite close. You just need to make one small change. You should reference the seq variable using the index, k, no...
ungefär 10 år ago | 0
Extracting matrix diagonal with diag(A)
Does this fix your problem? a = eye(4,4) == 1; diag(a) While the *diag* function works fine, if you have a variable n...
ungefär 10 år ago | 0
| accepted
Merge tables with different dimensions?
Does this example do what you need? A = randi(9,4,3) B = randi(9,4,5) C = randi(9,4,2) D(1:4,1:size(A,2)) = A;...
ungefär 10 år ago | 0
search for a code in a cell
key = [1 1 -1 -1] C{1} = [1 1 1 1];C{2}=[1 1 -1 -1];C{3}=[1 -1 1 -1];C{4}=[1 -1 -1 1] loc = find(cellfun(@(x)all(x == ke...
ungefär 10 år ago | 1
| accepted
I need help creating a function for taking an array and reversing it and i have to use a for loop. I have looked online but i really dont know what i am doing?
There are built-in functions for this, such as *fliplr* and *rot90*. However, if you want to use a loop, think about the proc...
ungefär 10 år ago | 0
Difference Between a Number and Character Array
These links might be helpful for understanding data types in MATLAB, as well as classes in general: * <http://www.mathworks.c...
ungefär 10 år ago | 0
When zooming, 3D plotted data exceeds uipanel extent despite axes being clipped
While I'm able to replicate this in previous MATLAB versions R2012a, R2012b, R2014a as well as some releases prior to 2011, this...
ungefär 10 år ago | 0
| accepted
Most Efficient Spreadsheet File
If Image Analyst's solution doesn't work for you, you might try *csvread*. Assuming you're able to save your data in .csv format...
mer än 10 år ago | 0
Question
Obtaining corresponding pixel indices in perspective-corrected image
I am attempting to warp an image taken from an off-center camera to produce an image that resembles the viewfield were it taken ...
mer än 10 år ago | 1 answer | 0
1
answerHow to reverse a number?
x = 1234; s = num2str(x) - '0'; xr = polyval(s(end:-1:1),10)
mer än 10 år ago | 2
User Defined input in form of a table
You can either import tabular data from excel using *xlsread* or create a GUI that contains a *uitable* with MATLAB. Creating yo...
mer än 10 år ago | 0
| accepted
Counting element length in cells.
Look into <http://www.mathworks.com/help/matlab/ref/cellfun.html *cellfun*> >> A = {'Piggy'; 'gue7352892'; 'hdufhe~jf'}; ...
mer än 10 år ago | 9
switching pixel with defined colour in a matrix
If I is your image: I = imread('peppers.png'); R = I(:,:,1); G = I(:,:,2); B = I(:,:,3); Idx = reshape(randperm...
mer än 10 år ago | 1
| accepted
Random number generation after time interval
I'm assuming this program involves a loop. If so, is each iteration quick enough that it's sufficient to simply check how much t...
mer än 10 år ago | 0
Is it possible to make graphs like this in MATLAB?
Have you tried *boxplot*? http://www.mathworks.com/help/stats/boxplot.html
mer än 10 år ago | 0
How to store user-generated text within a loop?
In order to store multiple strings, likely of different lengths, you will need to use a cell array. <http://www.mathworks.com/he...
mer än 10 år ago | 0
| accepted
How can i get neighbors from 3D array but in the same order as the matrix ?
One way to do it: A = rand(5,5,5); B = false(size(A)); B(3,3,3) = true; %Point around which you want to find neighbor...
mer än 10 år ago | 0
how to ellipse fitting to connected object?
help regionprops This allows you to return the orientation, major axis length, and minor axis length of binary data with r...
mer än 10 år ago | 0
| accepted
How to draw a two y axis and one x axis graph . The Two y axis should arrange in top and bottom and x axis should position in left side of the plot
If *plotyy* doesn't work for your purposes, you can create two axes with the same position, then set the 'Color' property of the...
mer än 10 år ago | 0
code to form a matrix by selecting some elements in another matrix
Look into the *randi* function.
mer än 10 år ago | 0
| accepted
Problem in plotting a summation
Try out the *cumsum* function. Also it's worth noting that all the functions/operators you need (factorial, ./, .^, etc.) can al...
mer än 10 år ago | 0
for loop for matlab files
% where N is the number of files for i = 1:N load(['M' num2str(N) '.m']) end This will change based on whether...
mer än 10 år ago | 0
| accepted
How to write program to choose random numbers from given input set?
see *randi*
mer än 10 år ago | 0
How to navigate through Struct/Cell from Matlab Gui?
For determining the datatype of the arrays selected by the user, see the *iscell* and *isstruct* functions. The *who* command ca...
mer än 10 år ago | 0
Plot doubt: how to fill the squares.
Try using the *MarkerFaceColor* property. Example: x = 0:pi/32:2*pi; y = sin(x); z = cos(x); plot(x,y,'s',x,z,'...
mer än 10 år ago | 0
| accepted
How to know time that spent matlab in solving problem?
help profile or help tic Running *tic* and *toc* will simply tell you how much time passed between the respective ...
mer än 10 år ago | 0
Easy for loop question
i must be a real, *positive* integer. Because i starts at 1, and you reference A(i-1,2), your first iteration will try to access...
mer än 10 år ago | 1
How to retain only the positive root of a quadratic equation?
help imag So, if you wanted to return only roots without complex parts: R_all = roots([1 1 0 1]); R_real = R_all(~i...
mer än 10 år ago | 1
How to accept an answer in a comment?
If you can't get them to re-submit it themselves, and if flagging doesn't work, I would just copy+paste it into an answer of you...
mer än 10 år ago | 0
